Listen to this lecture

http://www.youtube.com/watch?v=Rl2LwnaUA-k

One of many fascinating lectures by Dr.V S Ramachandran

What if we had

Here's something to think about

What if we had only simple neural networks such as the following

sensory axon--sensory neuron--inter-neuron synapses (sensory side)--inter-neuron--
inter-neuron synapses (motor side)--motor neuron--motor axon

Think of it this way

sensory neurons input the sensory information and motor neurons enable in the motion of body parts.

Now the question is:
is this enough?;
Can we survive if we only had such networks?;
How do you think one would behave with only these?
I think something is lacking, what do you think?

I think this discussion may help us in having a broad picture of the anatomy of brain

Brain anatomy

http://www.psych.ualberta.ca/~ITL/brain/module1.htm

This link directs to a study module for various parts of the brain. This is a decent start for deeper understanding.

I would suggest to pick an interested part of the part and start deeper discussions. It would speed the learning process